Widespread deposits of volcanic debris indicate that frequent pyroclastic flows scour the slopes of Kizimen Volcano. On March 2, 2013, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on the Terra satellite captured a flow as it cascaded down the eastern flank of the volcano. The false-color image (made from near infrared, red, and green light) shows airborne dust and ash lofted by the flow, as well as brown older debris, white snow, dull red forests, and a white gas and ash plume. Poperechny Brook, which flows north from Kizimen, is also partially filled with pyroclastic flow deposits.